Improvements in and connected with Brushes for Dynamo Electric Machinery.


114,027. Troup, Curtis, & Co., and Wickett, J. H. March 15, 1917. Brushes a of the kind which are tapered in cross-section towards the trailing edge so as to increase the resistance rapidly as each commutator bar d passes, in order to minimize sparking, have a cross-section in the form of an equilateral triangle with the corners cut away, the apex of the triangle being directed in the direction of motion of the commutator.




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Cited By (3)

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    DE-10058872-A1June 06, 2002Bsh Bosch Siemens HausgeraeteBürste und Bürstenanordnung für eine dynamo-elektrische Maschine
    DE-102007055658-A1May 28, 2009Temic Automotive Electric Motors GmbhContact brush for commutation of coils of commutator machine, has bearing surface which is adapted at periphery of commutator, and commutator lamella improves commutation ability of contact brush
    GB-2483984-AMarch 28, 2012Schlumberger Technology CorpBrush for fluid-filled motor